Sharks have lived in the oceans for over 450 million years, long before dinosaurs appears .There are now about 360 species of sharks, whose size ,behavior ,and other characteristics differ widely .

   Sharks range in size from the 6-inch-long dwarf-dog shark to 60-foot-long whale shark—the world’s biggest fish. The whale sharks, like two other large shark species—the basking shark and the mega mouth shark---are harmless to people because they feed on plants and small aquatic（水生的）animal.

Every year ,we catch and kill over 100 million sharks, mostly for food and for their fins. Dried shark fins are used to make shark fin soup, which sells for as much as ＄50 a bowl in fine Hong Kong restaurants. Others sharks are killed for sport and out of fear. Sharks are volunterable （脆弱）to overfishing because it takes most species 10 to 15 years to begin reproducing and they produce only a few offspring.

While sharks are seen as people –eating monsters, they save human lives. In addition to providing people with food, they are helping us in cancer. They are among the few animals in the world that almost never get cancer. A research shows that chemicals extracted （提取）from shark cartiage（肋骨）have killed cancerous tumors in laboratory animals .Their highly effective immune system also allows wounds to heal quickly without becoming infected.

Sharks are needed in the world’s ocean ecosystems. Although they don’t need us ,we need them .We are much dangerous to sharks than they are to us .For every shark that bites a person, we kill one million sharks.

Sharks

Origin of sharks	Sharks appeared       71       ,long before dinosaurs.
72	Dwarf-dog sharks are      73      . Whale sharks are 60 feet long.
74      of being caught and killed	For food . For sport        75
76	Sharks help us to        77      Sharks can heal quickly when       78
79	Humans should protect sharks for the world’s ocean ecosystems Because we are        80      sharks.

完型填空

　　Doc Waston, the bird-caretaker（看守鸟的人）, was walking along the path in the San Francisco Zoo. Suddenly he came face __1__ face with a large tiger. He stood very still. The __2__ and the animal looked at each other.“I didn't __3__ what I saw at first,” Doc said“but there he __4__.”

　　Doc had no gun. He knew he __5__ be killed. The tiger's big yellow eyes __6__ him, but the big animal did not move. With much care, Doc went round the big __7__. Then Doc ran for the zoo kitchen.

　　“The big tiger's out! The big tiger's out!”cried Doc as he __8__ the kitchen door.

　　__9__ the men took guns, a zoo-keeper stepped out to take a look. And there __10__ the tiger only a few feet away. The big animal was looking __11__ at him. The keeper could see it would not be __12__ to jump back. So he __13__ took a hose（洒水用的软管）that was __14__ him. Then he turned __15__ the water. The tiger stepped __16__.

　　At that time a bell sounded. This __17__ all the keepers that an animal was out. Men from all over the zoo __18__. The tiger was surprised by the __19__. He turned and started back for the tiger house. Doc followed __20__.

　　At the tiger cage, he caught up with the animal. Doc pushed a garden rake（钉齿耙）at the tiger. It would have been easy for the cat to come at Doc. But the animal seemed to be tired of the game. He turned and went quietly through the open door into the cage.

　　Doc came up with care. He closed the door. The tiger was back where he belonged.

　　“I'm going back to the bird-cages,”said Doc.“I'm not afraid when they get out.”

阅读理解

阅读下列文，从每题所给的A、B、C、D四个选项中，选出最佳答案。

December O6 Canada: For those of you who have been following this story, the third suspect(嫌疑犯) in the Canadian Cat Mutilation (残害) case has been caught. On March 8, after just under a year of searching, the FindMatt Campaign received information that would comfort many. Now known as Mattew Kaczorowski, 21 years old, this cat mutilator was picked up by the police from the streets of Vancouver. In May 2001, three young men took a young cat; named “Kensington” after the area of town from where she was taken, from the street to a house. They began to cruelly treat and mutilate her to death, videotaping the attack. Two of the suspects, recognized as 21-year old Jesse Champlain Power and 24-yearold Anthony Ryan Wennekers, were arrested shortly after the incident. Neither helped the police in an effort to find the third suspect. at the time known only as “Matt”.

    In May 2002. Katie set up the “Find Matt Campaign”, with the goals of raising public awareness (意识) about animal cruelty and having as many eyes as possible look for Matt.

    “I don't think Matt would have been caught had it not been for Katie Woodward's information.” said Detective Gordon Scow, one of the arresting officers.

    Kaczorowski faces the charges of animal cruelty, theft under $ 5000 and possession of property taken by crime, but one charge remains absent: that of animal cruelty. According to Canadian law, this kind of crime must be charged within six months.

    The case is now before the Courts.

    While finding Matt is a big step in the right direction of this case, it is not over. It remains that Kensington's guardian (监护人) has not yet come forward. It is important that her guardian speak out to lessen the possibility of the charges being dropped.

1．What does the passage mainly talk about?

    A. A cat was killed cruelly in Canada.

    B. A Canadian cat mutilator was caught.

    C. People pay attention to animal protection.

    D. No crimes can escape from being charged.

2．Which of the following is in correct order according to the time when the events happened?

    a. Matt was caught by the police.

    b. “Find Matt Campaign” was set up.

    c. Jesse and Anthony were soon arrested.

    d. Three young men mutilate a cat to death.

    e. Katie got the information about the third suspect.

A. b.e,a,d,c	B. e,a,d,c,b
C. d.c,b,e,a	D. a,d,b,e,c

3．Which one of the charges does Matt certainly have to face?

    A. Stealing less than $ 5000.

    B. His possession of property.

    C. The crime of animal cruelly.

    D. A six-month imprisonment.

4．What can we infer from the passage?

    A. Catching Matt was easy for the police.

    B. Very few people care about Matt's case.

    C. Katie started the Find Matt Campaign to protect animals.

D. The final result of the case depends on the cat's guardian.

 

阅读理解

阅读下列文，从每题所给的A、B、C、D四个选项中，选出最佳答案。

December O6 Canada: For those of you who have been following this story, the third suspect(嫌疑犯) in the Canadian Cat Mutilation (残害) case has been caught. On March 8, after just under a year of searching, the FindMatt Campaign received information that would comfort many. Now known as Mattew Kaczorowski, 21 years old, this cat mutilator was picked up by the police from the streets of Vancouver. In May 2001, three young men took a young cat; named “Kensington” after the area of town from where she was taken, from the street to a house. They began to cruelly treat and mutilate her to death, videotaping the attack. Two of the suspects, recognized as 21-year old Jesse Champlain Power and 24-yearold Anthony Ryan Wennekers, were arrested shortly after the incident. Neither helped the police in an effort to find the third suspect. at the time known only as “Matt”.

    In May 2002. Katie set up the “Find Matt Campaign”, with the goals of raising public awareness (意识) about animal cruelty and having as many eyes as possible look for Matt.

    “I don't think Matt would have been caught had it not been for Katie Woodward's information.” said Detective Gordon Scow, one of the arresting officers.

    Kaczorowski faces the charges of animal cruelty, theft under $ 5000 and possession of property taken by crime, but one charge remains absent: that of animal cruelty. According to Canadian law, this kind of crime must be charged within six months.

    The case is now before the Courts.

    While finding Matt is a big step in the right direction of this case, it is not over. It remains that Kensington's guardian (监护人) has not yet come forward. It is important that her guardian speak out to lessen the possibility of the charges being dropped.

1．What does the passage mainly talk about?

    A. A cat was killed cruelly in Canada.

    B. A Canadian cat mutilator was caught.

    C. People pay attention to animal protection.

    D. No crimes can escape from being charged.

2．Which of the following is in correct order according to the time when the events happened?

    a. Matt was caught by the police.

    b. “Find Matt Campaign” was set up.

    c. Jesse and Anthony were soon arrested.

    d. Three young men mutilate a cat to death.

    e. Katie got the information about the third suspect.

A. b.e,a,d,c	B. e,a,d,c,b
C. d.c,b,e,a	D. a,d,b,e,c

3．Which one of the charges does Matt certainly have to face?

    A. Stealing less than $ 5000.

    B. His possession of property.

    C. The crime of animal cruelly.

    D. A six-month imprisonment.

4．What can we infer from the passage?

    A. Catching Matt was easy for the police.

    B. Very few people care about Matt's case.

    C. Katie started the Find Matt Campaign to protect animals.

D. The final result of the case depends on the cat's guardian.

 

When you travel in South America, you’d better pay attention to the following three kinds of dangerous South American animals.

Piranhas（水虎鱼）

Although only a small number of piranhas are considered to be dangerous to humans, the red-bellied piranha is definitely one of those. Evidence has shown that a large group of piranhas can absolutely eat a herd of large animals crossing the river, leaving only bones. This fish lives in the freshwater streams of South America, and they can smell the blood from far away and launch attacks swiftly. It is said that they are only dangerous to humans if the water volumes are less and lower.

Anacondas（水蟒）

This South American monster of a creature often appears in the films or your nightmares！They have weighed over 230 kilograms. It is often considered to be the biggest snake in the world. You certainly don’t want to get caught alone with this snake due to its method of attacking and killing its victim. It is indeed a remarkably different brand of snake type as it regularly coils（缠绕）around all over its target, increasing the pressure until eventually its victim dies. Its jaws are powered by large muscles that produce enough power for its over 100 sharp teeth to pass through the thick skin of an crocodile. They don’t have poison. Sometimes they prefer to camouflage themselves so they look like their surroundings and swiftly draw back when humans are near.

Golden Poisonous Frogs

The golden poison frog might be the most-deadly of the South American animal, which is protected by means of poison. This very small frog, less than 55 mm in length, packs enough punch（效力）to take down a pair of African bull elephants. This apparently harmless frog has always been known to have killed people who have touched it directly. It’s also been noted that chicken and dogs have died by contacting things on which a golden poison frog had wandered! In intense colors, they normally look attractive to their targets.

1.What can we learn about piranhas from the passage?

A. Piranhas are the most dangerous animals.    

B. Piranhas like to live in the deep seabed.

C. Piranhas may attack human beings when the water level is low.

D. Piranhas only attack human beings when they cross the river in groups.

2.How does an anaconda kill its victim according to the passage?

A. It often uses its poison to kill its victim.

B. It often uses its strength to kill its victim.

C. It kills its victim mainly using its powerful teeth.

D. It kills its victim with the help of other snakes.

3.The underlined word “camouflage” in Paragraph 3 means “________”.

A. hide itself by appearing like the surroundings

B. terrify and capture the enemy by making much noise

C. move around to search for delicious food

D. give off harmful gas to kill the targets

4.Chicken and dogs are mentioned in Paragraph 4 to show that ________.

A. no animals can survive the poison of the golden poison frog

B. they like to wander along the path of the golden poison frog

C. the golden poison frog likes eating them most      

D. the poison of the golden poison frog is deadly